Question

Реши задачу. По стеблю высотой 1м ползёт улитка. Днём она поднимается на 3 дм, а к вечеру спускается на 2дм . Через сколько дней она доползёт до верхушки растения?ПОМОГИТЕ ПОЖАЛУЙСТА

Answer 1

3 дм-2 дм=1дм в день
1метр:10дм= 10 дней
Ответ: за 10 дней доползет до верхушки

Answer 2

Problem Analysis

We are given that a snail crawls up a stem with a height of 1 meter. During the day, it climbs up 3 decimeters (dm), and by evening, it descends 2 decimeters. We need to determine how many days it will take for the snail to reach the top of the plant.

Solution

To solve this problem, we need to calculate the net distance the snail covers each day. The net distance is the difference between the distance climbed during the day and the distance descended in the evening.

Let's assume that the snail reaches the top of the plant on the nth day. On each day, the snail climbs 3 dm and descends 2 dm. Therefore, the net distance covered by the snail each day is 3 dm - 2 dm = 1 dm.

Since the height of the stem is 1 meter, which is equal to 100 decimeters, the snail needs to cover a total distance of 100 dm to reach the top.

To find the number of days it takes for the snail to reach the top, we can divide the total distance by the net distance covered each day:

Number of days = Total distance / Net distance

Substituting the values, we get:

Number of days = 100 dm / 1 dm = 100 days

Therefore, it will take the snail 100 days to reach the top of the plant.

Answer

The snail will take 100 days to reach the top of the plant.